Photographic apparatus



(No Model.) 4 Sheets-Sheet l.

H. KUHN.

PHOTOGRAPHIG APPARATUS. No. 403.476. Patented May 14, 1889.

(No Model.) 4 Sheets-Sheet 2,.

H. KUHN.

PH'OTOGRAPHIG APPARATUS.

No. 403,476. Patented May 14, 1889.A

Assaillllll 4 Sheets-Sheet 3.

(No Model.)

H. KUHN. PHOTOGRAPHIG APPARATUS.

Patented May 14, 1889.

N. PETERS. Phnm-Lnhognpher. wnhmgmn. D. c.

4 Sheets-Sheet 4.

(No Model.)

H. KUHN. PHOTOGRAPHIG APPARATUS.

fn Vn L0 H5427 Patented May 14, 1889.

Y wlw N PEYERS, Phom-Lmmgmphef. whwmglmn. C.

UNITED STATES PATENT OFFICE.

HENRY KUHN, OF ST. LOUIS, ASSIGNOR TO HENRY A. HYATT, OF KIRKVOOD,MISSOURI.

PHOTOGRAPHIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 403,476, dated May 14,1889. Application filed .Tune l5, 1888. Serial No. 277,160. (No model.)

T a/ZZ whom it may con/cern.:

Be it known that I, HENRY KUHN, 0f St. Louis, Missouri, have made a newand useful Improvement in Photographic Apparatus, of which the followingis a full, clear, and exact description.

The improvement relates to the production of photographie copies ofphotographs, pictures, or other objects capable of being photographed;and it consists, mainly, in the means by which the operator, from aposition in the rear of the camera, can readily and accurately adjustthe object being copied, so that it shall be properly located with reference to the camera, substantially as is hereinafter set forth andclaimed, aided by a reference to the annexed drawings, makinpart of thisspec-ication, in which- Figure lis a side elevation of the improvedapparatus, and Fig. 2 a plan of the same; Fig. 3, a verticalcross-section on the line 3 3 of Fig. Fig. i, a vertical cross-sectiontaken on the line -i l in the rear of the easel. Figs. 5 and C aresections similar to that of Fig. 5, and used to illustrate the variousadjustments of the easel; Fig. 7, a detail, being' a section on the line'7 7 of Fig. 9; Fig. S, a vertical eross-section on the line 8 S of Fig.9; Fig. 9 a section on the line 9 9 of Figs. 5 and 7; Fig. lO, avertical longitudinal section on the line l0 lO of Fig. i; Fig. 1l, adetail sect-ion of a part of Fig. l0; Fig. l2, a rear elevation of thegroup of hand-wheels at the rear end of the apparatus.

The views are upon various scales, and the saine letters of referencedenote the same parts.

The improved apparatus, considered generally, consists of an elongatedbed-plate, a camera, an easel, and means for adjusting the easel as awhole, and also that part of it which immediately supports the obj ectbeing copied, the camera and the easel being upheld by the bed-plate audbeing, respectively, at or toward the opposite ends thereof, the cameraoccupying a xed position and the easel being movable bodily toward andfrom the camera, and that part of the easel which is used to hold theobject being copied being movable vertically, laterally, and around acenter, and the means for effecting these various adjustments beingoperative from the rear of the camera.

A, Fig. l, represents the bed-plate, B the camera, and O the easel. Thebed-plate, in turn, may be upheld in any suitable manner; but theapparatus is rendered more complete by employing a special support-suchas the base D-upon which the superstructure can not only rest, but alsobe swung around, and thereby enable the easel to be presentedy to anylight. The bed-plate in practice is a rectangular frame, substantiallyas shown, and its side bars, a, are, in eifect, slides for the easel tobe moved upon in the direction of the length of the bed-plate.

E represents a screw extending longitudiually in the bed-plate. It isconfined in the direction of its length, but adapted to be rotated inbearings in the end bars of the bedplate. The easel, by means of the nute, Figs. lO and i, which is attached tothe easel, is

in engagement with the screw, and by rotating the screw the easel ismoved along the bed-plate and toward or from the camera, according tothe direction in which the screw is rota-ted. The screw is pro videdwith a handle, e', Figs. l, 2, and lf3.

F and G represent two shafts extended lon` gitudinally in the bed-plateand journaled in the end bars, a', and adapted to be rotated by means oftheir respective handles f and g. The shaft G is used in eifecting thevertical adjustment of the object being copied, and the shaft F thelateral adjustment of the object. flhe shaft F is provided with thepinion f', Fig. 2, and the shaft G with the pinion g. The pinionj"engages with a toothed arm, f2, and the pinion g engages with a toothedarm, g2, Figs. 3, 4, 5, and (5. The arms f2 g2 are pivoted side by sideupon the screw E. The arm g2 is extended upward at g3, and the two partsg2 gS form, in eifect, a lever of the bell-crank type, which isjournaled upon the screw E for abearing. As the lever, by means of thegeared connection with the shaft G, is turned upon its bearing, itsupper armnamely, the extension gS-is moved to the right or left,according to the direction in which the shaft G is rotated. The movementIOO of the armv g3 is indicated by the full and broken lines in Fig. 4,and by means of it the object being copied is adjusted laterally. Themost convenient mode of carrying out lthis part of the improvement is byslotting the arm g3, as shown at g4, and passing it over a thumb-nut, H,Figs. 4 and l0, which in turn is applied to a pin, h, that is held in anupright bar, I. This last-named part I is held and adapted to be slippedlaterally upon the horizontal bars j j of a frame, J, Figs. 4, 5, 6, andlO. The pin 71, extends forward through the bar I, and at its forwardend, h', it is made to engage with and' sustain the holder K, Figs. 1,2, 3, and l0, which supports the picture L, Fig. 3, being copied.

The operation of this part of the construction is as follows: l/Vhen itis desired to adjust the picture, say, to the left as viewed in Fig. 3,the operator rotates the shaft G to throw the lever-arm g3 in thatdirection. The arm carries the pin 7i and holder K with it, and theupright bar I slides upon the bars j j, and the parts assume theposition indicated by the broken lines in Fig. 4, and the picture L isthereby placed laterally to the left, as desired. To adjust the pictureto the right, the shaft G is rotated in the opposite direction, whichcauses the arm g3 and holder K to beshifted to the right. The forwardend of the thumb-nut H abuts against the rear face of the bar I. Ashoulder upon the pin h comes against the front face of the bar I, andthe pin end h is preferably journaled in the hglder K, all substantiallyas shown in Fig. l

The vertical adjustment of the holder K and picture is eected asfollows: M, Figs. 3, 4, 5, 6,7, and 9, represents a bar jointed at itslower end, m, to the arm f2 and at or toward its upper end to the lowerhorizontal bar, j of the frame J. Suppose it is desired to depress theholder from its position of Fig. 5. The shaft F is rotated to cause thearm f2 to rotate in the direction indicated by the arrow f4, Fig. 5.This movement causes the arm f2 and bar M to be drawn downward, asindicated by the broken lines in Fig. 5, and the frame J, being jointedto the bar M, is drawn downward with it. The frame J can be movedvertically upon the upright guides f j2 upon the easel C, and theposition of the arm f2 and bar M determines the levelof the frame J. Theframe J, by means of the pin h, carries the holder K with it as theframe is thus adjusted vertically upon the guidesj2 3'2, and the slot g4in the arm g3 provides for the upward and downward movement of the partsH h. The guides ,7'2 j? are preferably rods passing through thehorizontal arms jjs of the frame J The radial adjustment of the pictureand picture-holder is eected as follows:

N, Figs. 3, 4, 5, and 6, represents another bar leading from the arm f2.At its lower end it is' jointed to the arm f2, and at its upper end tothe holder K at 7c. The arm N is slotted longitudinally at yn. The arm Mis slotted longitudinally at m. Suppose it is desired to turn thepicture to depress, say, its right corner, looking in the direction ofFigs. 3 and 6. The thumb-screw O, which is used to connect the bar Nwith the holder K, is tightened, and the thumb-screw P, which is used toconnect the bar M with the frame J, is loosened, and the shaft F isrotated to cause the arm f2 to be turned in the direction of Athe arrowf4, Fig. 5. The eifect of the movement is the turning of the holder onits bearing in the frame J. When it is desired to turn the picturetheother way, the arm f2 is turned the other way and the right-hand corneris raised. When radial adjustment is not required, the connectionbetween the holder K and the bar N is loosened.

The picture is held in the holder K in any suitable manner. The screw Eand the shafts F G can all be operated by means of the handles e f g inthe front of the camera. This enables the adjustments to beexpeditiously performed, as the operator while viewing the picturethrough the camera can effect the adjustments. When it is desired toshift the easel a long distance upon the screw E, the nut e can bedisengaged from thescrew,leav ing the easel free to be moved along thebedplate. To this end the nut e, Fig. 4, is made in halves e e',attached to the arms e2, which are pivoted at e3 and elastically heldapart by the spring e4. By compressing the arms e2 e2 and spring e4 theparts e e are opened'apart sufficiently to clear the screw E. T0 providefor turning the frame J on the pivot at P, a construction such as shownin Figs. 9 and 7 may be adopted. The thumb-screw P is applied to athreaded bolt which passes through the bar j', and is provided with ahead, p', which is held in a block, p, having a boss, p2, upon which thebar M turns, it being a form of joint analogous to one used in someforms of compasses.

The present construction is one well adapted for copying photographsgenerally, and it is especially useful in the production of what is nowknown to the trade as stamp-portraits, in which production it becomesnecessary to make nice adjustments of the photograph or picture beingcopied.

I claiml. The combination of the bed-plate, the camera, the screw E, theeasel, the pictureholder on said easel, the shaft G, and connectionsbetween said shaft and said pictureholder for raising or` lowering thelatter as said shaft is turned, substantially as set forth.

2. The combination of the bed-plate, the screw E, the nut made to open,as described, and the easel, substantially as described.

3. The combination of the bed-plate, the screw E, the shaft G, thebell-crank g2 g3, the pinion g', the handle g, the pin 72 the easel, andthe frame J, substantially as described.

4. The combination of the bed-plate, the screw E, the shaft F, thepinion f', the han- IOO IIO

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dle f, the arm f2, the bar M, the frame J, and the easel, substantiallyas described.

5. The combination of the bed-plate, the camera, the easel, thevertically-adjustable frame J, devices for raising` and lowering` it,and the holder K, attached to said frame, sub* stantially as described.

6. The combination of the bed-plate, the screw E, the shaft F, thepinion f', the handle f, the arm f2, the easel, the frame J, the holderK, and the bars M N, substantially as described.

7. In combination with the base, bed-plate, and camera, an easeladjustable longitudinally on said bed-plate and a picture-holder on saideasel adjustable laterally, substantially as set forth.

8. In combination with the base, bed-plate, and camera, an easelprovided with a frame which is adjustable vertically and laterally and apicture-holder moving with said frame, substantially as set forth.

9. The combination of the bed-plate, the camera, the easel, a frameadjustable vertically and laterally upon said easel, and means,substantially as described, for operating said frame from a position inthe vicinity ot' the camera, substantially as set forth.

l0. The combination of the bed-plate, the screw E, the shafts F G, thehandles e fg, the pinions f g', the arms f2 g2 g3, the easel, the frameJ, the holder K, and the bars M N, substantially as described.

fitness my hand this 15th of May, 1888.

HENRY KUHN.

'Vitnesses:

C. D. MOODY, A. M. EVERIsT.

